JABSCO 30910-0000 User manual

SERVICE
INSTRUCTIONS
DISASSEMBLY
Removetheendcoverscrews,lock
washersand
endcover.
RemovetheendcoverO-ring
lrom
the
O-ring
groove.
Withalarge
pair
ofwater
pump
pliers,grasp
thehuboftheimpellerandusinga
rotarymotion
pull
itfromiheimpellerbore.Remove
thecamscrew,camscrewO-ringand
cam. Re-
movethe
wearplatefrom
thebottom
oitheimpeller
bore.Withapair of
retainingring
pliers
reach
throughtheimpellerbo'eand.emove
theseal
positioning
retainingring
from
theshaft.
Slidethe
sealspacerofftheshaft.
Withahooked,stitt
probe,
reachintothesealboreand
pull
the
rubber/
carbon
portion
ofthesealofftheshaft.
Thenwith
the
same
Drobe
itshouldbe
oossible
toreach
betweenthe
wetendofthe
pump
andthebearing
housing
and
push
theceramic
portion
oftheseal
forwardintotheimpellerboreso
it
canbe
pulled
off
oftheshaft.Ensurelherubbersealseat
for
lhe
ceramicisalsoremovedfromthebottom
oftheseal
bore.
The
seal
may
alternativelybe
removedby
first
pressing
theshaftassembly
fromthe
pump
bodyandthen
pushing
ihesealoutolthesealbore
fromthebearingendofthe
pump.
Toremovetheshafvbearingsubassembly
lromthe
pul']p
body,
first
ensurethe
sealretaining
ringis
removedfromtheshaft.Removethebearingto
bodyretainingringlromthedriveendofthe
pump.
From
the
impeller
endof
the
pump,press
iheshalv
bearingsubassembly
from
the
pump
body.TheO-
ringlocatednext
tothe
bearingnearesttheimpeller
endoftheshattservesasawaterslingerandmay
beremovedifdesired.
Cleanall
parts
and
inspectlorwear. lfthecamhas
wear
grooves
onit
which
canbeeasily
feltwith
your
fingernail,itshould
probably
be
replaced.lfthe
wearplatehaswear
grooves
itshouldbereversed
wheninstalledorreplaced.lfthe
pump
endcover
has
significant
wear
grooves
itshouldbe
replaced.
Wear
toanyoftheaforementioned
parts
willreduce
the
pump'sprimeability.
Rotatethebearings'outer
races
toensurethey
rotatesmoothly.lfthey
grind,
wobbleorhang-up,theshaft/cearingsubassembly
shouldbe
replaced.
ASSEMBLY
Positiontheslinger
O ringabout
1/4"away
from
lhe
bearingnearestthe
impellerendofthe
shaft.Press
the
shafvbearingsubassembly
intothe
pump
body.
Installthebearing
retainingring
in
the
retaining
ring
groove
ensuringit
is
properly
seatedallaround.
Slidetheceramic
portion
ofthe
sealwith
rubber
sealseatattached
ontotheshaft
and
press
intothe
sealboresothe
whiteceramic
facestheimpeller
bore.Slidethe
carbon
portion
ofthe
sealontothe
shaft
untililcontactstheceramic.
Positionthe
seal
spacerontheshattagainst
thesealand
push
it
downtoexposethe
retainingring
groove.
Install
thesealretaining
ringensuring
itisfullyseated
in
the
retainingring
groove.
Dropthe
wearplateinto
lheimpellerboreensuring
thenotch
in
the
wear-
plate
aligns
with
the
locator
pinposition(centered
incamarea)inthebody.
Position
thecam
intheimpellerbore
andsecureit
in
place
with
the
camscrew
fittedwiththeO-ring
seal.
With
arotarymotion
(in
the
normalinstalled
directionotrotation)
push
theimpeller
into
the
impellerbore.Alignthe
flatsoftheimpeller
insert
withtheflatsonthe
shaftthen
push
the
impeller
with
a
rolarymotiondownuntil
itbottomsinthe
impeller
bore.Positiontheend
coverO-ringinthe
O-ring
groove
andinstallthe
endcoverwithend
coverscrewsand
lock
washers.
Recommendedtorqueforthecamscrew
is45-50
in/lbsandtheend
coverscrews65-70
in/lbs.

EXPLODED
VIEW
@
I
Key Parl
Numbef Descrip
on Quantity
2
3
6
7
8
I
10'
'11
13
14
16
18753-0346
30914-1000
18753-0343
30919-0001
30929-1000
30915-1000
18753-0345
18753-0428
14753-0342
30911-1000
18753,0340
92000,0560
30912-1000
1875s-0341
18753-0344
90135,0001
Screw,H.H.
lt
6
-1.0
x16mm
S.S.
(4
each
endcover
and1
eachcam
screw)
LockWasher
M6
S.S.
End
Cover
O-ring,End
Cover
lmpeller
Cam/Dowel
P;nAssy.
Weaplate
Retaining
Ring
Spacer
SealAssy.
(Spacer,
Carbon
&Ceramic)
Body
O ring, Cam
Screw
O
ring,
Slinger
ShafVBearing
Subassembly
Woodrufl
Key
Retaining
Ring
ServiceKil'
5per kit
4per
kit
1
1
1
1
1
1
1
1
1
1
1
'1
'1
1
'Parts
included
inService
Kit

PERFOBMANCE
TABLE
NOTE:
Table
showsapproxlmate
head_llow
lor new
pump
InU.S.
gallons
per
mlnule
andlltres
per
minute. Progessively
longerllfe
may
beexpected
asoperating
pressufes
andsPeeds
are
reduced.Fa;tory
Application
Engin€erlng
assistance
lsrecommend€d
forshaded
area High
startlnglorque
motois
arerequired.
Pumpstartingtorque
indrycondltlon
(nollr|ldIn
pump
body)G85inch-pounds
andlnw€t
conditlon
(lluldInpump
body)is65Inch-pounds
THEPRODUCT
DESCRIBED
HEREIN
IS SUEJECT
TO
THE
JABSCO
ONEYEAR
LIMITEDWARRANTY,
WHICH
ISAVAILABLE
FORYOUB
INSPECTION
UPONREOUEST,
14ss
DaleWay,
P.O.Box
2158,
CostaMesa,
CA.
92628-21s8,
Telephone:
(714)
545-8251
Bingley
Road,iiodd€sdon,
Herttordshire
EN11
OBuEngland,
Telephone:
+44-s92-467191
DIMENSIONAL
DRAWING
INcHES
(millimetes)
tqd( .daug,
/\
(5) {24 (e)
(154)
(191)
(37) 5/16DtA
l8
D
A)TNBII
4MOUNTNGNOLES
(rrDA)
r-ti,ii -
f,x'ft I
l-__lI t-
TOTALHEAD
24
(e1)
22
(83)
19112
\74)
10
(3,0)
20
(6,1)
40
112,2)
60
(18,3)
80
(24.4)
(45)
11
l42t
9-112
(36)
a
(30)
4.3
(0,3)
4.7
(0,5)
17,3
11,2)
26.0
(1,8)
34.6
\2,4)
ITI *+P""'ggbsy
conora,
on
OCopyright
1S92,ITT
CoQoraiion P nled
inU.S.A. AllRighls
Reselved Form:43000'0540
Rev.
11/92